/Engine/Plugins/Runtime/AudioCapture/Source/AudioCapture/Public/AudioCaptureBlueprintLibrary.h
Platform audio input device info, in a Blueprint-readable format
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)([BlueprintType](Programming/UnrealArchitecture/Reference/Structs/Specifiers/BlueprintType)) struct FAudioInputDeviceInfo
uint8:  1
bSupportsHardwareAEC
Whether or not the device supports Acoustic Echo Canceling
FString
DeviceId
ID of the device.
FString
DeviceName
The name of the audio device
int32
InputChannels
The number of channels supported by the audio device
int32
PreferredSampleRate
The preferred sample rate of the audio device